Jacquard mechanism for looms



June 7,1927. u 1,531,523 E. J, DACEY JACQUARD MECHANISM FOR LOOMS Filed Sept. 2. 1924 4 Sheets-"Sheet 1 ilyf/ 11 I June 7,1927. 1,631,523

E. J. DACEY JAGQUARD- MECHANsM FOR LOOMs Filedsep'- 2. 1924 4 Sheets-Sheet 2 June 7, 1927. 1,631,523

E, .1. DACEY JACQUARD MECHANISM FOR Looms F'ile SGPL 2. 1924 4 Sheets-Sheet 5 June 7, 1927. 1,631,523

E.' J. DACEY JACQARD MECHANISM FOR Looms Filed sept. 2, 1924 4 ets-s et '4 4f if?.

f d u IM .Z' N VENT@ B.'-

Patented June 7,

vE DWAPJ) J. Daarna` orf WORCESTER, trassacriirsnrrs, VAssrenoarocaomifroiivaj :'j'f xNoWLEs Loo'M worms, or WoncnsrnaMassacrausnrrs, 1a CORPORATION or MAssAoHUsnm'rs-i f jj. 1 f j 1 f JACQUARD MECHANISM roitnooivr'sl 'i f Application measeritemer a, 19241 Samariter-735,258.1" i

This inventionrelates to ajacquard mechanisml forilooms land is especially designed for use in weaving double fabrics. Such a fabric is shownin myco-pending application SerialNo.\,678,778,n1i1ed December 5, 1923, Patent Number 1,525,496. In weaving such fabrics, it isnecessaryto separate the warp threads to form two different sheds and it. is also `necessaryto passv certain pile warps `from one fabric tothe otherto form pile.;V`4

It is the general objectvl invention Vto'provide ajacquard mechanism bynwh'ich such double :fabrics may be"V conveniently f may be attained.

' yMy invention further4 relatesrto arrange be hereinafterdescribed and more :particularly pointed out in the appended claims.- y

iA preferred form ofy the 'invention'` is shown in the'drawings in which n Fig.,1' isan end elevation of my improved jacquard mechanism; 1 1 f Fig. 2 isaside elevationy thereof; l Fig. 3 Vis a sectional. endA elevation,y taken along the line 3-3 in Fig.'.2'; v Figs. 4, 5 and4 6 are vdiagr amniat'ic end elevations, .showing lthe parts in .different positions;

Y Figs.. 7, 8 and 9 are detail 'views yillustrating corresponding warp. positions; and

Fig. 10l ay sectional viewof va weave which may `be vproduced by myY improved mechanism'. f A 'Y f Y ,I Referringto the drawings, my improved jacquard mechanism comprises end frames 10r andl 11 (Fig. 2) mounted on'a base or support 12 and held in definite spaced) relation by cross rods 1 3 and cross frame members 14. A plurality 'of upright rods 1.5 (Fig. 1) `areffiXed in the'rend framesvl() and 11 and form guides for 4thevertically-,mov-

ing lifter. frames 16, 17', 18 and 19. Y A plurality oflifter'bars 20, 21, 22l and -23zare carried by they lifter 19 respectively, these ybars extending across wovenand by which otheruseful results,

time from either vfabric portion.

frames 16, 17, 18 and be-.rnoved intermittently fthiroughan `arm 29 and a link 30'by any suitable mechanism (not shown).-

the yusuall lifter wiresV 31 eachk h'avingf a' hook .actuating Y' The jacquard mechanism Yis provided with 324 (Fig. .3) at itsupper end and-also having its lowerend formed inV a. reverse l.bend 33V and provided with avlaterallyprojecting" hookA 34;( The.v wires are .controlled by thev f usual. `jacquard cylinder 35. (F ig. 1) which carries the .pattern l.cards and which fis Vreciprocatedon the rods 36 bysuitabledriving. Vmechanism. (not shown) operating through a link 37, bell crank38.and'link'39. j The pattern. cylinder and its driving *mechanism is of theusual type and. in itself forms no.

part ofmy present invention. ments and combinations ofparts which`1w1ll lt will be noted that the connecting rods 25'and26' are attached to the rocking levers` i 28 at points substantially.twiceas far. from the axis as theaconnectijng rods 24 and 27.

fConsequently 5th-e vertical movement of the `lifterframes,17 and 181and ofthelifter f bars 21`v and. 22 is substantially twice that of the frames 16 and 19 and ofithelifter l bars 20 and 23.A` This. proportionate movement is required to give-the necessary travel ofthe'selec'ted pile warps 'from the upper fabric to the-lower fabric or fromy the'lower ein fabric vto the upper fabric to form the con` 'i necting'pile.. f f .The type off double weave shown in my co-pending application isfdisclosed" in Fig. 1.0, in which a full setof: color or pile warps is nshown in both the upper and lower fabrics, so that any .color may be calledvr at 'any In the weaving `of this type' of fabric,-the vsuccessive steps shown in Figs.. 7, 8 and-9 corre* spond to the successivepositions of thejac quard mechanism shownin Figs. 4,5 and '6. jlnFigse and 7 the machineparts and warp threads `are inthe position. which lthey assume 'at the `time vwhen"t-heljacquard pattern selects the warp-threads -to' be raised ing controlled by the lifter frame 18, and all of the lower'color warps eil aredepressed,

Aundenthe` control of the lifter yframe 19. `The hooks 32 at the .upper ends of all vof the lifterl wiresare then free rfrom the lifter bars on the frames 16 and 17'and maybe l v fby separate harnesses and are not controlled Y V'by the jacquard mechanism. The vweave vce Y. `*selectively positionedf'by the jacquard pat-YV tern.j j The lioolrsBQ ofthe Wires 31 for the upper l. color warps 40 willbe moved off of the uppositionshown in Fig. 5, the war 'thre'ads Acommence their travel iii-opposite c irections. y

vor the'long travel'frames 17 and 18.

g wise than asset what I claim is Vframe ,19.v f

per lifter bars for such warps asflare designedtoniove `downward and form theplle a-tth'e' neXt operationy of the loom.

c sameftimathe` hooksBQ of thewires 31 for the lower warps 41 'which areto be raisedY to form the pile will be located to engage the lifter bars onV thel framepl?, while ythe `remainingwires are free from` such engagement and-aresupported on` the short travel As the jacquard thenmovesto lthe mid- The selectedpile warps move tothe center .ofthe fabric and theremaining'pile warps Vhave a movement equal to about one half the travel ofthe selected Warps. VWhen the movement' ofthe jacquard'` is Completed, asV indicated in Fig. 6, the pile Warps assume the Vpositions,"indicated in Fig. 9. i In this faecording to Whether it is underV the control" of-the short travellifter frames 16 and l19 The movements of `the bindery Warps 412 have been omit-ted from'this description, as these warps are moved'ln the A usual way shown in the` drawings v`is illustrative `only and it Will be understood that my'iiiiproved jacquard mechanism is equally lwell adapted to the. formation of many othertypes `of weave.v f 1' f Having thus described my invention and ,the advantages thereof, I do not Wish to be limited to theV details herein disclosed other forth in Vthe claims, 'but 1. In a j acquardfmechanism fora double fabric loom having duplicate sets of pile ,forming yarns, one set for eachV fabric, a

pair of movable members for each set of yarns, means to move one pair of members- ``vin a direction opposite to that inwhich the other pair 0f members moves, each pair lifting all the yarns correspondingV thereto on each movement of the jacquardwhereby the weight of the yarns carried bythe members `movingin one-direction is balanced by the4 weiglitof the yarns carriedby the members t moving in the opposite direction.

members for loneset connectedto one side At the f rocking member,

'7 tion, and :means c to *n pairs simultaneously .c of yarn, whereby the weights 2. In a jacquard Vmechanism l*for a vdouble fabric loom havingv duplicate sets of pile forming'v yarns, onerset for ,eachfabric,' a rocking member,.a. pair of yarn controlling of'the'rockingfmem-ber, another -pair of yarn controlling membersV for' lthe otlierset connected to the othersideof the rocking memf ber whereby said vpairs will move in opposite directions. y f Y -V In a. jacquard'mechanism for a doublev fabric loom having duplicate sets l,of pile forming yarns, one .setforeach fabric, a i a pair of yarn controlling members for one set connected vto onefsideA ofthe rocking member, another pairl of yarn controlling Ymembers forl the other seit con- -nected to the other side .of therocking member whereby said pairs will move inopposite directions, the members of each pair supporting the weightof theyarns of the set corresponding thereto sothatthe Vweight supported on each yside ofthe rocking member is` substantially the same andv in balance.'

1 l. In a jacquard vmechanism for doubleV fabriclooms having duplicate sets ofyarns, Y. one setfor each fabric, two pairs of movable members, one pair for eachV set, one:A of the members of each pair havingl a greater move#y ment than the other member to move :a rel-V atively small part of the Vyarns of the set correspondingy thereto toV pile forming posisupport and move said in opposite directions', the member of each .pair havingthe lesse-r movement supporting the greater'amount ported bythe members are substantially'the`V sameandfin balance ll -i f 5; In a-.jacquard mechanism for a double 105 fabric loom hav-ingduplicate vsets ofl yarns, onelset for each fabric, a lever rockingiabout a pivot, two pairs of movable members, onel pair for eacliset of yarns, one ypair being attached to the leveron one side ofthe pivot and the other member being attachedto` the lever on the other side of the pivot, one member of each pair receiving a relatively larger movement and adapted to lift` a compar atively small number of pile the other member of each pair lifting the remainder ofthe vpile forming yarns, the members forvlifting thel lesser number of Y yarns beingv attachedto the lever onfopforming yarns,

Vposite'SidesxfromandA substantially equal-`120v ly distanced from the pivot of the lever, and the members for lifting the larger number of yarns being connected to the lever. intermediate the other members andthe pivot of the memberatipoints substantially equal from the pivot of the lever. l

6. 'A jacquard mechanism for loomshav'- Y ing two duplicate sets of pile formingl yarns, one set foreach fabric, said mechanism comprisingva' pair ofmovable lifting members 130 of yarn supfor each set of yarns, one member of each pair having a greater movement than theo xed my signature.

pile yarn from one set of yarns only maybe raised at any given time to pile forming po-v T VSition, lo

' In testimony whereof I have hereuntol af EDWARD J. oAoiiY;y 

